Talking to David Letterman on Wednesday's "The Late Show," Kutcher held up well under relentless questioning about how his character, heartbroken Internet entrepeneur Walden Schmidt, will join the series. Their shared network, CBS, has kept details close to the vest.

We've heard before that Harper dies abroad in a woman-related accident. A report earlier this month had him dying in a "meat explosion" after he slips — or is pushed by his angry wife — in front of a Paris train.

Cryer said at the time he couldn't confirm Sheen's character would die — but said Harper's farewell wouldn't be too gruesome.